baber/WOPTO huggingface dataset:
Patent CA-2184425-C (CA)
Title: Method and system for interoperating between isdn and pstn transport for allowing simultaneous transmission of voice and data over one telephone line
Inventor: DAGDEVIREN NURI RUHI
IPC: H04M11/06
Filed: 1996-08-29
Granted: 1999-09-28
Abstract: A telephone system simultaneously transmits voice and data through a public switched telephone network and over one telephone line between a calling party location having an ISDN connection and a destination party location having a POTS analog connection.  The calling party location determines if the calling party location has an analog POTS connection and then creates a connection between the calling party and the destination party.  Data and voice band signals are packetized and multiplexed and transmitted through the public switched telephone network to a modem located at the destination party location.  The packets are demultiplexed into separate voice band and digital signal components and the digital signal components demodulated within the modem.  The demodulated data signals are forwarded to a data terminal and voice band signals forwarded to an analog terminal.
Patent CA-2190816-C (CA)
Title: Dewaxing with nickel-silicalite catalyst
Inventor: BUTLER JAMES R
IPC: C10G45/64
Filed: 1996-11-20
Granted: 2006-05-30
Abstract: A process for dewaxing middle distillate petroleum products includes the steps of introducing a middle distillate petroleum fraction having a boiling point in the range of from about 160°C to about 500°C into a reaction zone and contacting the middle distillate petroleum fraction in the reaction zone at temperatures of from about 500°F to about 700°F and pressures of from about 300 psig (2.04 Mpa) to about 2000 psig (13.79 Mpa) with a nickel-containing silicalite catalyst.
Patent CA-2192612-C (CA)
Title: Method for providing carrier information during a chat service
Inventor: JOSEPH EUGENE JOHN
IPC: G06Q30/00
Filed: 1996-12-11
Granted: 2000-06-20
Abstract: A subscriber to a chat service is provided with at least one announcement by thechat service provider about product and/or service offerings available to the subscriber from the chat service provider. The announcement typically takes the form of a menu of choices, thereby prompting the subscriber to respond. Following the announcement, the chat service provider listens for the subscriber's response. If the subscriber elects to accept the offer, then the chat service provider undertakes the necessary action to provide the offered product and/or service. The announcement may be made to the subscriber prior to bridging of the subscriber's call to facilitate entry of the subscriber into a chat session. Alternatively, or in addition, the announcement may be made after the subscriber has entered the chat session, but before (or after) the subscriber has requested an enhanced chat service feature, such as a private conversation or information access.
Patent CA-2195261-C (CA)
Inventor: DUTTWEILER DONALD LARS
IPC: H04M1/60
Filed: 1997-01-16
Granted: 2002-10-01
Abstract: The detection of echo is enhanced using a coarse near-end speech detector at a Y-side of an echo canceler and using a more accurate near-end speech detector at the E-side of the echo canceler, such that the latter detector uses a representation of far-end speech and a threshold value to determine if the magnitude of the echo canceler output is larger than that of an echo signal only. If it is, and there is an absence of an indication of the presence of near-end speech from the coarse detector, then the more accurate speech detector adjusts the value of the threshold in a first direction, otherwise it adjusts the threshold in a second direction, to more "finely tune" such accuracy.
Patent CA-2200548-C (CA)
Inventor: SCHULZ GALYN
IPC: B31F1/07
Filed: 1997-03-20
Granted: 2000-07-18
Abstract: An embossing apparatus and method which provides a better embossed appearance and eliminates undesired roughness on the backside of the web material. Two plies are multilevel embossed between rigid engraved rolls and backup rolls, which may be either engraved or smooth. One rigid roll has embossing elements of varying heights and perforation elements, which run in a side-by-side relationship with the corresponding perforation elements on the opposing rigid roll in a nip region of the apparatus. The multiple plies are perforation bonded between the perforation elements, which are preferably the two highest elements, thus reinforcing the other multi-level embossed pattern formed in between the perforation bonds. The embossed patterns impart a quilt-like contoured appearance to the finished product.
Patent CA-2202586-C (CA)
Title: Dispersion compensating fiber and optical transmission system including the same
Inventor: KOYANO YASUSHI
IPC: C03B37/014
Filed: 1997-04-14
Granted: 2003-05-06
Abstract: The present invention relates to a dispersion-compensating fiber for improving a transmission system with it in total chromatic dispersion and dispersion slope in the 1.55 µm wavelength band. The dispersion compensating fiber according to the present invention is characterized by having the following characteristics for light in the 1.55 µm wavelength band: chromatic dispersion preferably not less than -40 ps/km/nm and not more than 0 ps/km/nm; dispersion slope not less than -0.5 ps/km/nm2 and not more than -0.1 ps/km/nm2; transmission loss not more than 0.5 dB/km; polarization mode dispersion not more than 0.7 ps.cndot.km-1/2; cut-off wavelength not lees than 0.7 µm and not more than 1.7 µm in the length of 2 m; and bending loss at a diameter of 20 mm, not more than 100 dB/m. The dispersion-compensating fiber is optically connected at a ratio of appropriate lengths with a dispersion-shifted fiber as a compensated object; which can improve a system including the dispersion-compensating fiber in a total chromatic dispersion and dispersion slope of the system in the 1.55 µm band.
Patent CA-2205340-C (CA)
Inventor: NGUYEN HOA
IPC: C12M1/42
Filed: 1997-05-14
Granted: 2000-10-24
Abstract: The loading of samples into wells that are formed in a vertical slab gel is facilitated by a needle guide that provides expanded openings that taper toward the wells, the openings being separated by partitions that help the user distinguish between the wells and the barriers of transparent gel material between the wells.
Patent CA-2216642-C (CA)
Title: Window comparator
Inventor: RICKARD WAYNE T
IPC: H04L1/00
Filed: 1996-03-22
Granted: 2006-05-30
Abstract: A method and apparatus for reordering frames of data within an interface device of a receiving device. The interface device includes a window comparator (200) and a control device (202). The window comparator (200) includes a bidirectional 2:1 multiplexer (206), a counter (208), a first and second comparator (210, 212), a binary adder (214), a 3:8 decoder (216), eight 2-input OR gates (218), a subtractor (220), a bitmask (222), a shift register (224) with latched outputs, and a read buffer (204). The interface device can switch context to allow frames associated with mo re than one sequence to be handled concurrently. A "Missing Frame Window" is generated and associated with each sequence. When a frame associated with a particular sequence is received out of order, a bit within the Missin g Frame Window representing the "missing" frame is asserted to represent receipt of the out of order frame. The out of order is then stored, and will later be transferred to a host.
Patent CA-2217867-C (CA)
Inventor: HAMILTON DAVID MORRIS JR
IPC: C01G49/02
Filed: 1996-04-11
Granted: 2006-05-23
Abstract: A process for reducing the residual chloride present in iron oxides, particularly in regenerated iron oxides produced from hydrochloric acid waste liquid generated from steel pickling, by post-synthesis treatment of the iron oxides with a hydrated metal compound, in particular yellow iron oxide, and subsequently heating the mixture at a temperature sufficient to release at least a part of the crystalline water contained in the hydrated metal compound to facilitate the removal of residual chloride present in iron oxides. The purified regenerated iron oxides are particularly suitable for making high-grade ferrites.
Patent CA-2219475-C (CA)
Title: Composition pharmaceutique de fenofibrate presentant une biodisponibilite elevee et son procede de preparation
Inventor: STAMM ANDRE
IPC: A61K9/26
Filed: 1997-12-11
Granted: 2002-07-09
Abstract: L'invention a pour objet une composition de fénofibrate à libération immédiate comprenant: (a) un support inerte hydrosoluble recouvert d'au moins une couche contenant un principe actif fénofibrate sous forme micronisée une taille inférieure à 20 µm, un polymère hydrophile et éventuellement un tensio-actif; ledit polymère hydrophile représentant au moins 20% en poids du poids de l'élément a); et (b) éventuellement une ou plusieurs phase(s) ou couche(s) externe(s). L'invention a encore pour objet son procédé de préparation.
Patent CA-2221325-C (CA)
Title: Reduced head impact seat system
Inventor: MORLOCK WADE T
IPC: B64D25/04
Filed: 1997-11-17
Granted: 2005-02-08
Abstract: The invention provides an apparatus for reducing head impact in sudden impact events in an aircraft. A panel is detachably fastened to the rear surface of a seat back so that the seat back will break free of the panel and be thrown forward while the panel will remain in position. The panel is preferably made of a low mass material to absorb momentum of the head.      The panel can be fashioned as a "dummy" seat back, detachably fastened to a seat back by hook and loop fasteners. It can be fabricated to aesthetically blend with the styling of the seat back.
Patent CA-2222588-C (CA)
Title: System for girding articles
Inventor: LANGERAK ALFRED
IPC: B65B27/00
Filed: 1996-06-11
Granted: 2007-09-11
Abstract: System for girding an article with a strip of adhesive tape. The system comprises a girding device and a roll of adhesive tape (8), and if desired also a roll of paper tape (10). The girding device comprises a housing (4) provided with a slot (5) which is intended for moving the article through it, and means for rotatably supporting the roll of adhesive tape, and also the roll of paper tape if present. At one side of the slot lies a star wheel (11) with spokes which extend over the slot and are separated by recesses which are suitable for accommodating the article when it is being moved through the slot and passes the star wheel in the process. The girding device and the roll of adhesive tape and/or the roll of paper tape are designed in such a way that the roll in question can be placed in only one position in the girding device.
Patent CA-2223689-C (CA)
Title: Procede continu de transesterification pour la preparation de polyesters de polyols
Inventor: LETTON JAMES ANTHONY
IPC: C11C3/10
Filed: 1996-05-28
Granted: 2002-05-07
Abstract: La présente invention concerne un procédé continu de transestérification destiné à la préparation de polyesters de polyols. La réaction de transestérification d'esters d'acides gras d'alkyle et de polyols donnant des polyesters de polyols, peut être couplée à un procédé de fabrication d'un alkyle inférieur, d'esters d'acides gras. Un gaz inerte est utilisé pour enlever les alcools. Les alcools gazeux provenant de la réaction de transestérification sont utilisés comme source d'alcool dans la synthèse des esters d'alkyles inférieurs, et le gaz inerte provenant du courant d'alcool peut être recyclé. Le procédé consiste à préparer des esters méthyliques d'acides gras, à récupérer les esters méthyliques, puis à transestérifier un polyol dans un processus en deux temps sans solvant, avec les esters méthyliques d'acides gras.
Patent CA-2223915-C (CA)
Inventor: SMITH MICHAEL JOHN
IPC: D21H23/14
Filed: 1998-01-20
Granted: 2005-10-18
Abstract: An efficient and effective method for treating tissue making stock to make soft tissues involves adding a softening agent to a first papermaking furnish of short fibers, such as eucalyptus fibers. A second papermaking furnish of long fibers, such as softwood fibers, is blended with the short fiber furnish. Thereafter, wet strength agents and/or dry strength agents are added to the blended furnish. The treated furnish is then fed to a headbox and processed into soft tissue in any suitable manner.
Patent CA-2225054-C (CA)
Inventor: PERRIN NICOLAS
IPC: C21C5/52
Filed: 1996-06-18
Granted: 2008-06-03
Abstract: This process is intended for melting a charge in a furnace, in particular an electrical furnace for melting scrap for the production of steel, by supplying energy of fusion to the charge and with post-combustion of the fumes by injecting an oxygen-containing gas into the furnace space above the charge. The oxygen--containing gas is injected in the form of a plurality of jets, each one of which has a flow rate of between approximately 50 and 1,200 Sm3/h and an injector (11, 12) outlet speed of between approximately 10 and 150 m/s.
Patent CA-2227331-C (CA)
Title: Microscale fluid handling system
Inventor: DUNAYEVSKIY YURIY M
IPC: G01N37/00
Filed: 1996-07-19
Granted: 2002-04-02
Abstract: A microscale fluid handling system (10) that permits the efficient transfer of nanoliter to picoliter quantities of a fluid sample from the spatially concentrated environment of a microfabricated chip to "off-chip" analytical or collection devices (23) for further off-chip sample manipu- lation and analysis is disclosed. The fluid handling system (10) is fabricated in the form of one or more channels (12), in any suitable format, provided in a mi- crochip body or substrate of silica, poly- mer or other suitable non-conductive ma- terial, or of stainless steel, noble metal, silicon or other suitable conductive or semi-conductive material. The microchip fluid handling system (10) includes one or more exit ports (16) integral with the end of one or more of the channels (12) for consecutive or simultaneous off chip analysis or collection of the sample. The exit port or ports (16) may be configured, for example, as an electrospray interface for transfer of a fluid sample to a mass spectrometer (23).
Patent CA-2232927-C (CA)
Title: Protective cover for plumbing fixtures
Inventor: CASTILLO BRADLEY E
IPC: F16L57/00
Filed: 1998-03-24
Granted: 2001-02-13
Abstract: The present invention provides a disposable protective cover which securely yet releasably attaches to a conventional plumbing fixture via locking tabs, thereby reserving an annular space around the fixture and the underlying pipe during floor construction and allowing easy and rapid access to the fixture once the floor construction has been completed.
Patent CA-2233659-C (CA)
Title: Catalyst for the manufacture of polyethylene with a narrow molecular weight distribution
Inventor: NOWLIN THOMAS EDWARD
IPC: C08F210/16
Filed: 1996-07-25
Granted: 2007-12-04
Abstract: An ethylene-alpha-olefin copolymerization catalyst is prepared by impregnati ng a porous support, such as silica, with a contact mixture of an organomagnesium compound such as dialkyl magnesium and a silane compou nd which is free of hydroxyl groups, such as tetraethyl orthosilicate. A transition metal component such as titanium tetrachloride i s then incorporated into the support in a specific ratio to the magnesium and silane components. Activation of this catalyst precursor with a trialkylaluminum compound results in a catalyst system which is effective for the production of ethylene copolymers.
Patent CA-2234977-C (CA)
Title: Belt-driven document accumulator having belt-dampening table and side guides
Inventor: NEIFERT LEONARD
IPC: B65H29/14
Filed: 1996-10-18
Granted: 2003-04-22
Abstract: The invention relates to belt-driven ramp document accumulators. Prior accumulators typically jam at very high speeds. The document accumulator of the present can operate reliably at high speeds without jamming. The document accumulator (1) includes first (55, 61) and second (57, 59) outer belts extending between first and second pulleys for contacting and transporting a document, and an inner belt (65, 67) generally parallel to and horizontally displaced from both the first and second outer belts such that it lies between the first and second outer belts. A belt-dampening table (51, 53) having a horizontal surface adjacent to a horizontal reach of the inner belt is provided for dampening oscillations of the inner belt which occur at high speeds.
Patent CA-2235244-C (CA)
Title: Improved deactivation of organisms using high-intensity pulsed polychromatic light
Inventor: DUNN JOSEPH E
IPC: H01R13/639
Filed: 1996-10-16
Granted: 2005-03-22
Abstract: A method of deactivating microorganisms in food products, packaging material, water, air, and other products involves illuminating the microorganisms using at least one short-duration, high-intensity pulse of broad-spectrum polychromatic light. In variations of this embodiment, the light has an intensity of at least 0.1 J/cm2, the pulse duration is from between about 10 nanoseconds and 10 milliseconds, and/or at least 50 % of the at least one pulse's energy is transmitted in light having wavelength from between about 170 and 2600 nanometers. Advantageously, the microorganisms may be Cryptosporidium parvum oocysts, Bacillus pumilus spores or poliovirus.
Patent CA-2241644-C (CA)
Title: Electric vacuum cleaner
Inventor: SUETSUGU NAOKI
IPC: A47L9/00
Filed: 1998-06-23
Granted: 2007-12-18
Abstract: An electric vacuum cleaner comprising a vacuum cleaner body, a hose to be connected to the vacuum cleaner body, a support pipe to be connected to the hose, and a suction device to be connected to the support pipe. The suction device is provided with running wheels, and the vacuum cleaner body is able to be detachably fastened to the support pipe, and is made to run by the wheels of the suction device in a condition where the vacuum cleaner body is attached to the support pipe. The cleaning workability can be improved, and the external appearance of the vacuum cleaner body in a condition of being detached from the support pipe can be improved.
Patent CA-2252248-C (CA)
Title: Method and apparatus for identifying and handling on-line access calls within a switch
Inventor: MEDEIROS STEVEN ROBERT
IPC: H04M3/436
Filed: 1998-10-29
Granted: 2003-12-09
Abstract: Method and apparatus for identifying on-line access calls in a network switch. The switch determines which calls are to an on-line service provider, usually an Internet service provider or ISP. The switch then determines of the service provider has enough ports available to handle the call, and if the connection to a dedicated data network has enough capacity. The call can then be handled as an on-line access call and routed accordingly. The initial determination as to whether the call is an on-line access call can be made by analyzing information received when the call is initiated such as the called party number digits or by a query initiated by an advanced intelligent network (AIN) trigger.
Patent CA-2254187-C (CA)
Title: Pump impeller
Inventor: ARBEUS ULF
IPC: F04D29/24
Filed: 1998-11-17
Granted: 2002-07-30
Abstract: The invention concerns a pump impeller of a centrifugal- or a half axial type meant to pump liquids, mainly sewage water. According to the invention, the pump impeller comprises a hub (1) provided with one or several vanes (2) the leading edges (3) of which being strongly swept backwards. The size of the sweep angle (.alpha.) varies between 35 and 65 degrees at the connection with the hub (1) and 55 and 85 degrees at the periphery (5)
Patent CA-2255858-C (CA)
Inventor: CHRISTOPHERSEN PALLE
IPC: C07D333/24
Filed: 1997-05-26
Granted: 2007-09-11
Abstract: The present patent application relates to compounds having formula (I) or a pharmaceutically acceptable salt thereof wherein one of R1, R2 and R3 is a non-cyclic acidic group having a pKa value below 8 or a group which is in vivo convertible to such a group; R4, R5 and the other two of the substituents R1, R2 and R3 are each independently selected from hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, alkoxy, hydroxy, halogen, trifluoromethyl, trifluoromethoxy, cyano, nitro, amino, and aryl, aralkyl, arylamino, aryloxy, aryl-CO-, or heteroaryl, wherein the aryl and heteroaryl groups may be substituted one or more times with substituents selected from alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, hydroxy, alkoxy, halogen, trifluoromethyl , trifluoromethoxy, cyano, nitro and amino; or R3 and R4 or R4 and R5 together form a fused 4- to 7-membered carbocyclic ring which may be unsaturated, or partially or fully saturated, while the other substituents R1, R2, R3, R4 and R5 are as defined above; Y is -CO-, -CS-, -S O2- , or -C(-N-R8)-, wherein R8 is hydrogen, alkyl, or cyano; X is -NH-, -CH2-NH-, or -SO2-NH-; Z is NR6,O,-CH.dbd.CH-, -C.dbd.C-,-N.dbd.C H- , or -CH.dbd.N-; wherein R6 is hydrogen, or alkyl; R11, R12, R13, R14 and R15 are each independently selected from hydrogen, alkyl, cycloalkyl , cycloalkylalkyl, alkenyl, alkynyl, alkoxy, hydroxy, halogen, trifluoromethyl, trifluoromethoxy, cyano, nitro, amino, -NHSO2-R7, -COOR7, - SO2N(R7)2, -SO2OR7 and -CO-R7, wherein R7 is hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, aryl or aralkyl, and aryl, aralkyl, arylamino, aryloxy, aryl-CO-, or heteroaryl, wherein the aryl and heteroaryl groups may be substituted one or more times with substituents selected from alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, hydroxy, alkoxy, halogen, trifluoromethyl, trifluoromethox y, cyano, nitro and amino; or one of R11 and R12, R12 and R13, R13 and R14 or R14 and R15 together form a fused 4- to 7-membered carbocyclic ring which may be unsaturated, or partially or fully saturated, while the other substituents R11, R12, R13, R14 and R15 are as defined above. The compounds are useful for the treatment of diseases and disorders responsive to the blockage of chloride channels.</SDO AB>
Patent CA-2256475-C (CA)
Inventor: CAMPBELL MICHAEL T
IPC: B62D1/16
Filed: 1997-07-25
Granted: 2005-10-25
Abstract: Cette invention concerne une barrière acoustique (10) conçue pour être fixée à la paroi pare-feu (20) d'un véhicule à moteur et comportant une couche isolante (12) d'un point de vue acoustique, à structure moulée et dotée de caractéristiques d'amortissement du son. Ladite couche isolante (12) comporte un soufflet de protection (40) moulé intégralement, conçu pour recevoir et isoler acoustiquement une colonne de direction (70). Ledit soufflet (40) possède une base (42) moulée intégralement et dotée d'une partie convolutée (48) ainsi qu'un capuchon (56) moulé intégralement avec ladite partie convolutée (48). Cette dernière comporte une section à paroi externe continue (50) avoisinant un orifice (46) ménagé dans la couche isolante (12). Ladite section à paroi externe continue (50) possède une extrémité supérieure formée intégralement avec une partie flexible en forme d'anse (54). Une paroi interne continue (52) possède une extrémité supérieure intégralement formée avec la partie en forme d'anse (54) et une extrémité inférieure intégralement formée avec le capuchon (56). Ledit capuchon (56) possède un orifice coïncidant avec les orifices (46, 78) respectifs de la couche isolante (12) et de la paroi pare-feu (20). L'épaisseur de la partie convolutée (48) est inférieure à celle de la base (42), du capuchon (56) et de la couche isolante (12) de façon à éviter la distorsion de la couche isolante (12) au cours de l'installation de la colonne de direction (70). Une couche absorbante (14) peut être montée entre la couche isolante (12) et la paroi pare-feu (20).